\fYou are looking for a way to incentivize the sales reps that you are in charge of. You design an incentive plan as a way to help increase in their sales. To evaluate this innovative plan, you take a random sample of 40 of your reps and their weekly incomes before and after the plan were recorded. You calculate a difference in income as (after incentive plan - before incentive plan). You are interested in if sales after the program are greater than sales before the program. You perform a paired samples t-test with the hypotheses of Null Hypothesis: \"D s 0, Alternative Hypothesis: uD > 0. You see that the average difference in sales was $8.66 with a standard deviation of $400.19. What is the test statistic and p-value of this test